Abstract
Thin layer chromatography has been used for the analysis of anionic surfactants, which are common ingredients of personal care and cleaning products. From the environmental and human health points of view, emphasis has been placed on the use of safer solvents in analytical and synthetic chemical processes. In the present study, we have used 2-butanol and ethyl acetate as a green mobile phase in combination with silica gel G as a stationary phase for the separation and identification of dodecylbenzene sulfonic acid, N-lauroylsarcosine sodium salt, sodium lauryl sulfate, and dioctyl sodium sulfosuccinate. The separation pattern has been presented as a densitogram. To examine the separation efficiency of the proposed thin layer chromatographic system, chromatographic parameters for separations have been calculated. To examine the effect of nature of alcohol on the mobility of surfactants, 2-butanol was substituted in the mobile phase (M 9) with other alcohols. Mobility trends of the separated surfactants have been examined in the presence of foreign organic and inorganic substances as impurities. The limits of detection for the separated surfactants have been determined. The proposed method has been successfully applied for the identification of surfactants in commercial products.
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Acknowledgments
The authors are thankful to the Department of Applied Chemistry and the University Grants Commission (UGC), New Delhi, for providing research and financial assistance, respectively, to both authors who are working as UGC-BSR Faculty Fellow (Prof. Ali Mohammad) and research scholar (Rizwana Mobin).
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Mohammad, A., Mobin, R. Ethyl Acetate/2-Butanol as Effective Green Chromatography Solvent for Coexisting Anionic Surfactants. J Surfact Deterg 19, 893–900 (2016). https://doi.org/10.1007/s11743-016-1834-7
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DOI: https://doi.org/10.1007/s11743-016-1834-7